#表结构形式：字典的字典（嵌套字典）
people={}
people['ford']={'name':'ford prefect',
                'gender':'male'}
people['wwh']={'Name':'wangwenhu',
               'gender':'femal'}
print(people)

#美观的打印复杂数据结构
import pprint
pprint.pprint(people)
#访问复杂结构数据
pprint.pprint(people['wwh'])
#字典的key是区分大小写的
pprint.pprint(people['wwh']['Name'])